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Finding the Fourth Proportional to 895.04, 1,235.21 and 673.64

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Solution

The fourth proportional to 895.04, 1,235.21 and 673.64 is: 929.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.04 : 1,235.21 = 673.64 : x
  2. Step 2: Convert to fraction form
    895.04/1,235.21 = 673.64/x
  3. Step 3: Cross multiply
    895.04x = 1,235.21 × 673.64
  4. Step 4: Simplify right side
    895.04x = 832,086.86
  5. Step 5: Solve for x
    x = 832,086.86/895.04
  6. Step 6: Final answer
    x = 929.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.